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[问题探讨] 请问,WDZN电线,可以用PC塑料管敷设吗? |
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{:1_473:} 可别说满足,180min(WDZN的产品耐火时间自己可以查),GB55024的对塑料管选择的要求
忘了前段时间说耐火时长的问题了?
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